He somehow got the idea that his jolly mean-spirited manic-ness would bother us, but all it does it presage the swinging of his emotional pendulum into self-hatred and depression.
He thinks so highly of himself in such a fantastical way, with all of his delusions of blushing women and mass jealousy of his superior DNA. But it's obviously all a screen for his deep insecurity.
Lucas says one thing, once in awhile, that almost makes me pity him. In another person I WOULD pity them:
"Just be nice to me..." he says.
Lukey mah boy, you make it so damn hard.